Motor-carriage.



N0. 633,666= Patented Sept. 26, I899. A. C. STEWART.

MOTOR CARRIAGE.

App! anon 5! dm 17 1898 2 Sheets-Sheet Nn Model.)

No. 633,666. Patented Sept. 26, I899. A. C. STEWART.

MOTOR cARmAaE.

- (Application filed Mar. 17, 1898.)

(No Model.) 2 Sheets8heet 2.

NITE STATES PATENT OFFICE.

MOTOR-CARRlAQ E.

SPECIFICATION forming part of Letters Patent No. 633,666, dated September 26, 1899.

ApplicatlonfiledMarchN, 1898. Serial No. 674,257, (remand To all whom it may concern.-

Be it known that LALFRED CLEMENT STEW- ART, a citizen of the United States, residing at Santa Paula, in the county ofVentura and State of California, have invented a new and Improved Motor-Carriage, of which the following is a full, clear, and exact description. One object of my invention is to provide a motor-carriage of superior strength and lightness and to so support the motor that injury thereto by jar is reduced to the minimum. This is accomplished by flexibly and yieldingly connecting the motor-frame with the carriage-body or frame and confining such movement within certain limits.

Another object is to provide simple and convenient means for increasing or diminishing the speed and starting and stopping the motor-carriage.

My invention relates to thatclass of motorcarriages' having a motor carrying frame jonrnaled at one end on the axle of the driving-wheels and with the other end supported by springs. Preferably the motor is mounted at tho spring-supported end of said frame and as close thereto as is practicable, so that the weight of the motor is carried by the springs rather than immediately by the axle.

he springs may be supported by a 'fr'ame which connects the axles ormay be supported by the axles directly, and in such case the springs of the carriage-body are utilized for supporting the motor. In carriages of this class the motor adds so much to the weight that must be carried at all times in addition to the load that when the driven wheels or those which are not directly acted upon by the motor strik'e an obstruction they will not readily pass over it,but will have a tendency to stop until they are forced forward by the onward movement of the carriage. The strain caused by this hesitation or temporary stoppage of the driven wheels tends to rack the vehicle. In my newly-invented vehicle the two axles are. connected together by a rigid frame independent of the connection through the body and the springs, thus to withstand said strain. If the rigid connectionwere omitted, the entire strain of forcing the driven wheels over obstructions would have to be borne by'the other connections, and the result-would be that the carri. e would be racked tcpieces quicker than when the extra rigid connection is used.

My invention includes features of construction herein described and claimed.

I propose to apply power to the driving wheels through the medium of friction-gear, and my invention includes the combination, with the driving-disk of the gear,.of a lever and connections for shifting the friction-disk shaft endwise to throw it into and out of gear with the driving-disk and yielding means for normallyholding the leverin position to cause the disks to engage each other with the pressure normally required for driving the frict-ion-disk.

The accompanying drawings illustrate my,

invention.

Figure 1 is a side elevation of a motor-carriage provided with my invention. Fig 2 i s a fragmental plan section of the same; Line 2 2, Fig. 1, indicates the line of section.

A- A indicate two wheel-carried axles, one, A, being providedwith driving-wheels BB. 0 indicates the frame connectin g said axles.

D indicates the spring-carried frame, which serves'as the carriage-body of the vehicle. This frame is mounted on springsE E, carried by said axles.

F indicates a friction-disk carried by a frame G. Suitable means are provided for connecting the disk with the driving-wheels A A for driving the same. 7

G indicates amotor-carrying frame having one end journaled on the axle by any suitable means-such, for instance, cups g, cones a" being mounted on the axle and balls (1 between the cups and cones. The other end of the frame G is swung from the carriage-body 'by means of-a centrallyarranged link g", a. spring-g' oeing interposed between the carriage-body or frame D and the motor-frame G to take up the lost mot-ionof the link to virtually prevent vertical movement of the end of the frame G with relation to the spring-carried frame'D.

as the tube g,with' .It is a well-known fact that to'secure the XCO uneven surfaccsiu the road. desirable feature in mycarria-ge, in winch-the motor is prevented f romthis backward and .forward movement (except in unison with the would jar the machinery to a greater or less extent if not controlled or counteracted, the springg' is rendered a compression-spring by placing its ends one against thebody-and the other against the motor framel In this manner it will have a tendency to keep thelink connection taut and prevent any sudden jar to the motor which might occurif the motorframe could move vertically independently of the carriage-bodty'even to the slight extent of the lost motion occasioned by the link connection. By placing the spring around;the link it will be retained in position without need of other fastening. This construction gives a very strong and'simple connection between the body and the motonframe, as the link supports the front end of the frame and the greater portion of the weight of the motor and also limits the distance to which the front end of the frame and the body can be separated, while the spring graduates--11 6., modifies by degrees-the distance to which they may approach each other.

H indicates a motor mounted on the motorfram'e G. v

I indicates a driving-disk carried by the motor-frame and driven b the motor through suitable mechanism and engaging the friction-disk F to drive it.

J indicates-a screw-threaded sleeve carried by the frame G. K indicates a screw-threaded box screwed into such sleeve.

. L indicates a shaft journaled in and carried by the box K and connected with the drivingwheels by suitable means, such as the pinion M and driving spur-gear N and the equalizing mechanism 0 P Q Q.' his mechanism being of the ordinary form, desm-iotion thereof is unnecessaryherein.

Suitable means are provided for turning the sleeve-box K to shift the shaft L endwise to bring the disk F into engagement with and to withdraw it from the driving-disk I. For this purpose R indicates a lever for turning the box to screw and unscrew the same into and out of the sleeve J. The screw-threads are square and of coarse pitch, so that a comparatively small movement of the lever will give sufiicient end motion tovthe box and shaft L. Yielding means are provided for normally holding the lever in position to cause the disks to engage each other with the pressure normally required for driving the friction-disk 'lo secure-this."

ble to wait for the l in the drawings l for this purpose. 7

. '1 indicates a hand-lever connected with the lever R by connecting-rod"i, and U indicates a notched segment for holding the lever T.

The driving-disk .I is fastened to a sleeveT, which is slidingly mounted on the motor-shaft 71,? and is held from turning thereon by a spline hand a feather i.

V indicates a hand-lever fastened to a rockshaft \V on the inside of the carriage, connectedwith a sliding box X, which is journaled on the sleeve 1', which carries the driv ing-disk I. By operating the lever V the driving-disk I will be moved across the face of the friction-disk F, thus increasing and diminishing the speed at which the disk Fwill be driven by the disk I at a given speed of the motor, and thus to increase or diminish the speed of the motor-carriage without changing the speed of the motor.

Since the'disk F is movable toward and from the disk I, it may be moved away from the disk I until the latter has been upon itsshaft and placed where desired, when the disk F may be moved back into engagement with the disk I. This avoids moving the disk I laterally across the face of the disk F when they are in contact with each other, as when the engine and carriage are both standing still. It also permits of the instant separation of the motive power from the carriage-as, for instance, in order to stop the carriage suddenly-and it would be impossifiy-wheel of the motor to come to a standstill.

Now, having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

, 1. A motor-carriage having a motor-oarry-- ing frame journaled at one end on the axleof the driving-wheels and with the other end supported by a link connected with a frame or carriage-body which is mounted on springs carried by the axles of the carriage; and a compression-spring between the spring-carried frame or carriage-body and the link-can ried end of the motor-frame to take up the lost motion of said link.

2. The combination of the wheel-carried axles; driving wheels being on one .of said axles; a frame connecting said axles; a frame journaled at one end to the axle of the driving-wheels and being spring-supported at the other end; a screw-threaded sleeve carried by such frame a screwthreaded box screwed into such sleeve; a shaft'journ-aled in and carried by .the box and connected with the driving-wheels to drive them; a friction-disk fixed on said shaft to drive it; a driving-disk to engage the face of the friction-disk to drive it; and means for turning the box to shift the shaft endwise.

3. The combination of the wheel-carried axles; driving-wheels being on one of said axles; a frame connecting said axles; a frame moved have shown a spring S llO journaled at one end to the axle of the driving-wheels and being spriIr -supported atthe other end; a screw-tlu'eaded sleeve carried by such frame; a serew-tlnteaded box screwed into such sleeve; a shaft journaled in and carried by the box-and connected with the driving-wheels to drive them; a friction-disk fixed on said shaft to drive it; a driving-disk to engage the face of the friction-disk to drive it; a lever for turning the box to shift the shaft endwise; and yielding means for normally holding the lever in position to cause the disks to engage each other with the pressure normally required for driving the friction-disk.

4. In a motor-carriage the combination of the wheel-carried axles; driving-wheels being on one of said axles; a frame connecting said axles; a motor-carrying frame rigidly journaled at one end to the axle of the drivingwheels and being spring-s11 pported at the other end; a friction-disk carried by such frame and connected with the d rivin g-wheels to drive them; a driving-disk shaft mounted onsaid motor-carrying frame; a motor on such frame and connected with said shaft; ea driving-disk mounted on said shaft to turn therewith and to slide therealoug' and arranged to engage the face oi the friction-d sk to drive it; and means for sliding the drrving-disk along its shaft and holding it in different positions thereon.

5. In a motor-carriage, the combination with a -friction-gear, of a lever and connections for shifting the friction-disk shaft endwise to throw the disks into and out of gear:

and yielding means for normally holding the lever in position to cause the disks to engage each other with the pressure normally required for driving the friction-disk.

ii. In a motor-"carriage, the combination, with the wheeled afvles and the bed of a 1uotor-frame supported thereby; a motor on the frame provided with a shaft; a drivingdisk slidingly mounted on the shaft; a driven disk arranged with its face parallel with said shaft, and movable at right angles toward and from the same: and levers for moving each of saiddishs independently of the other.

ALFRED LEMENT STE WARI.

Witnesses:

JAuEs R. Towxsunn W. J. TRAVERS.

It is hereby certified that in Letters Patent No. 633,666, granted September 26, 1899, upon the application of Alfred Clement Stewaet, of Santa, Paula, California, for an improvement .inMotor-Carriages, errors appear in the printed specification requiring currection, as follows: On page 3, line 18, after the word frame the word rigidly should be inserted and same page, line 19, after the word frame the word rigidly should be stricken out; and that the said Letters Patent should he read with these corrections therein that the same may conform to the record of the casein the Patent dflice.

Signed, countereigncd, and'sealeti this 17th day of October, A; 1)., 1899.

[ E L-1 WEBSTER DAVIS Assistant Secretaw of the Interior.

Countersigned O. H. DUELL,

Commissioner ofPate-nts. 

